Map select
Display the map selection screen. Click on the following four bolts (in order) on the box in the top right that displays your name: top-left, top-right, bottom-left, bottom-right. Press the cursor keys to select a new map.

Cheat mode
Press ~ during game play to display the command line. Enter one of the following codes to activate the corresponding cheat function. Note: Points, ranks and medals are disabled while this code is in effect.

if you cannot download trainer then go to Chrome/Firefox's settings, specifically to the Privacy settings and simply unchecking the "Enable phishing and malware protection" option.

Some Game Trainers are sometimes reported to be a Virus or Trojan,
the most common is a keylogger called HotKeysHook or the file
has been packed/protected with VMProtect or Themida and
is recognized as Win32/Packed.VMProtect or Win32/Packed.Themida.
In ALL cases this is a FALSE ALARM as NONE
of the Game Trainers @ GCW contain known malicious code! More info in
the PC
Games FAQ!